Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5082118 | Device for separating hard objects, such as stones, from a stream of wood | Jyrki Paarma, Mikko Sissala, Ilkka Valkonen, Pekka Kokko | 1992-01-21 |
| 4955484 | Device for separating hard objects, such as stones, from a stream of wood | Jyrki Paarma, Mikko Sissala | 1990-09-11 |